package com.springdoor.wx.core.page;

import com.springdoor.wx.core.text.Convert;
import com.springdoor.wx.utils.ServletUtils;

public class TableSupport {

        /**
         * 当前记录起始索引
         */
        public static final String PAGE_NUM = "pageNum";

        /**
         * 每页显示记录数
         */
        public static final String PAGE_SIZE = "pageSize";

        /**
         * 排序列
         */
        public static final String ORDER_BY_COLUMN = "orderByColumn";

        /**
         * 排序的方向 "desc" 或者 "asc".
         */
        public static final String IS_ASC = "isAsc";

        /**
         * 分页参数合理化
         */
        public static final String REASONABLE = "reasonable";

        /**
         * 封装分页对象
         */
        public static PageDomain getPageDomain()
        {
            PageDomain pageDomain = new PageDomain();
            pageDomain.setPageNum(Convert.toInt(ServletUtils.getParameter(PAGE_NUM), 1));
            pageDomain.setPageSize(Convert.toInt(ServletUtils.getParameter(PAGE_SIZE), 10));
            pageDomain.setOrderByColumn(ServletUtils.getParameter(ORDER_BY_COLUMN));
            pageDomain.setIsAsc(ServletUtils.getParameter(IS_ASC));
            pageDomain.setReasonable(ServletUtils.getParameterToBool(REASONABLE));
            return pageDomain;
        }

        public static PageDomain buildPageRequest()
        {
            return getPageDomain();
        }
}
